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* ThumbIndex — multi-panel indexer.
* Supports horizontal tabs, vertical side tabs, and wizard-style steps.
*/
import './ThumbIndex.css';
import {TabPanel, TabView} from '../../primereact/index.js';
import {useState, type ReactNode} from 'react';
export interface IThumbIndexItem {
id: string;
label?: string;
icon?: string;
items?: IThumbIndexItem[];
/** Cards to render when this item is active */
cards?: (string | string[])[];
}
export interface IThumbIndexProps {
items: IThumbIndexItem[];
orientation?: 'horizontal' | 'vertical' | 'top' | 'left' | 'bottom' | 'right';
type?: 'tabs' | 'thumbs' | 'steps';
/** Children rendering callback — receives the active item */
renderContent?: (item: IThumbIndexItem) => ReactNode;
activeId?: string;
onChange?: (id: string) => void;
className?: string;
}
/** Recursively flatten items to a flat list */
function flattenItems(items: IThumbIndexItem[]): IThumbIndexItem[] {
return items.flatMap(item => (item.items ? flattenItems(item.items) : [item]));
}
export function ThumbIndex({
items,
orientation = 'top',
type = 'tabs',
renderContent,
activeId: controlledId,
onChange,
className,
}: IThumbIndexProps) {
const flatItems = flattenItems(items);
const [internalActive, setInternalActive] = useState(flatItems[0]?.id ?? '');
const activeId = controlledId ?? internalActive;
const handleChange = (id: string) => {
setInternalActive(id);
onChange?.(id);
};
if (
type === 'tabs' ||
orientation === 'top' ||
orientation === 'bottom' ||
orientation === 'horizontal'
) {
return (
<TabView
activeIndex={flatItems.findIndex(i => i.id === activeId)}
onTabChange={e => handleChange(flatItems[e.index].id)}
className={`blong-thumb-index blong-thumb-index--horizontal ${className ?? ''}`}
>
{flatItems.map(item => (
<TabPanel
__TYPE='TabPanel'
key={item.id}
header={
<span className="blong-thumb-index__tab-header">
{item.icon && <i className={`pi ${item.icon}`} />}
{item.label && <span>{item.label}</span>}
</span>
}
>
{renderContent?.(item)}
</TabPanel>
))}
</TabView>
);
}
// Vertical (left sidebar) layout
if (orientation === 'left' || orientation === 'vertical') {
const activeItem = flatItems.find(i => i.id === activeId);
return (
<div className={`blong-thumb-index blong-thumb-index--vertical ${className ?? ''}`}>
<nav className="blong-thumb-index__nav">
{items.map(group => (
<div
key={group.id}
className="blong-thumb-index__nav-group"
>
{group.icon && (
<button
className="blong-thumb-index__nav-icon"
type="button"
>
<i className={`pi ${group.icon}`} />
</button>
)}
<ul className="blong-thumb-index__nav-items">
{(group.items ?? [group]).map(item =>
renderNavItem(item, activeId, handleChange),
)}
</ul>
</div>
))}
</nav>
<div className="blong-thumb-index__content">
{activeItem && renderContent?.(activeItem)}
</div>
</div>
);
}
return null;
}
function renderNavItem(
item: IThumbIndexItem,
activeId: string,
onSelect: (id: string) => void,
): ReactNode {
const hasChildren = item.items && item.items.length > 0;
return (
<li
key={item.id}
className={`blong-thumb-index__nav-item ${activeId === item.id ? 'blong-thumb-index__nav-item--active' : ''}`}
>
<button
type="button"
className="blong-thumb-index__nav-btn"
onClick={() => !hasChildren && onSelect(item.id)}
>
{hasChildren ? (
<i className="pi pi-chevron-down blong-thumb-index__nav-expand" />
) : null}
{item.label}
</button>
{hasChildren && (
<ul className="blong-thumb-index__nav-children">
{item.items!.map(child => renderNavItem(child, activeId, onSelect))}
</ul>
)}
</li>
);
}
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